feat: initialized template and wrote first gameplay code

modules/wave_survival/player_camera.h

@@ -0,0 +1,24 @@
+#ifndef PLAYER_CAMERA_H
+#define PLAYER_CAMERA_H
+
+#include "scene/3d/camera_3d.h"
+
+class PlayerCamera : public Camera3D {
+	GDCLASS(PlayerCamera, Camera3D);
+	static void _bind_methods();
+	void on_look_input(Vector2 input);
+	void update_fov();
+
+protected:
+	void _notification(int what);
+
+public:
+	void set_fov_factor(float value);
+	float get_fov_factor() const;
+
+private:
+	float base_fov{ 60.f };
+	float fov_factor{ 1.0f };
+};
+
+#endif // !PLAYER_CAMERA_H